There are plenty of great resources out there for people who care about Creation and want to express this through a Lenten observance.
Follow these links:
Catholic Climate Covenant resources
This set of beautiful reflections on God's compassion in the Australian context was put together by ARRCC supporter, Katy Nicholls, for the Anglican Public Affairs It's also available on the web as an electronic resource for free or in hard copy for a small cost: https://anglicancg.org.au/news-and-events/publications/
Laudato Si' Movement Lenten Calendar 2023: